I planted sweet potatoes and have several of these big beautiful plants now growing with yellow, red and lilac colored flowers. In other places where I planted the same sweet potatoes are the typical looking vine plants with flowers that look like morning glories.
I had some sweet potatoes set out and some morning glories vines was growing in them and the sweet potatoes bloomed like morning glories, they were mixed.
By Pinky (Guest Post)
08/20/2008
My Four O'Clocks look just like this plant. So that is what I think it is possibly a yellow four O'Clock
By
09/16/2006
Noope. It's a nicotiana, or flowering tobacco (not smokeable). They plant themselves from year to year. I guess your sweet potatoes didn't make it. But aren't they pretty?